Question

How much current is drawn by a television with a resistance of 30 ω that is connected across a potential difference of 120v?

Answer 1

By using the Ohms law, we can calculate the current.

Ohms law,

 $\frac{V}{I} = R$

Here, V is potential difference, and R is the resistance.

Given,  $V=120 V$ and $R = 30 ohm$.

Therefore, putting the given values in above relation , we get

$\frac{120V}{I} = 30 ohm$

or          $I=\frac{120}{30} = 4 A$

Thus, the current is drawn by a television 4 Ampere